Jinkō Shōjo 2(人工少女 2,Jinkō Shōjo 2? lit. "Artificial Girl 2") is a 3Deroticlife simulation game developed by Illusion for the PC. The player assumes the role of a young male on an island, populated with a number of idyllic locations typical to the genre (such as the beach, a hot spring, a school, a lab/office, a train car, and a castle's church and dungeon.) Accompanying the player is a cute girl, who provides a number of different social and increasingly erotic actions for the player.

At the beginning of the game, the player may customize the girl's different attributes, such as her hair color, hair style, breast size, skin color, and blood type (this has the added function of selecting her personality, based on the popular Japanese pseudoscience). Unless third-party modifications are used, the girl will still more or less look the same underneath the hair and minor modifications, a problem foreseen by most gamers to plague many other games of this genre that attempt this type of customization. This (along with other concerns, see below) has led to a lot of the aforementioned "modding" to this game, both inside and outside of Japan.

The object of Jinkō Shōjo 2 is to figure out how to satisfy the girl, based on conversation and reactions to chosen actions. If the player succeeds in making her happy, the game rewards the player (such as with new outfits for her to wear). While not a true dating sim (as they typically have more than one girl to choose from, among other things), the mechanics of the social and erotic interactions borrow heavily from such games. However, other than the setup, the game contains no real plot or backstory. Due to the non-linear nature of the game and the few goals (other than figuring out what the girl likes and how to successfully perform various actions with her) the game is felt by some gamers to be rather pointless and lacking in depth. Still, other gamers find value in the many modifications (as mentioned previously) and fansites associated with the game.

Unlike other games and products developed by Illusion, Jinkō Shōjo 2 contains no violence, rape, or humiliation overtones.

Illusion's policy states that the game is not intended to be sold or used outside of Japan, and official support is only provided in Japanese and for users in Japan. While the game itself is in Japanese, a fan created Englishpatch is available that converts most (but not all, as of May 2006) of the written Japanese into English. Spoken text in the game is still in Japanese.

Battle Raper is a 3D fighting game in which the objective is to strip, grope, and sometimes actively rape the female characters, including a special move by the boss character and only male fighter where the female opponent is forced to perform fellatio as the camera zooms in. Like in most Hentai games, however, the penis is rendered invisible or transparent. There is also a feature in the game which allows the player to have sex with the female characters.

RapeLay is played from the perspective of pervert named Kimura Masaya, who stalks and subsequently rapes a family (a mother and her two daughters).

Compared to Illusion's previous games, the main story is shorter, it features an improved 3D engine, and is mainly played through mouse control. According to Honest Gamers, RapeLay also has a "nakadashi" (Creampie) counter.

Sexy Beach 3 (Sexyビーチ3 in Japanese) is the third game in the Sexy Beach series. An expansion was released called Sexy Beach 3 Plus. During development, Illusion specificly chose characters from their roster of characters prior to 2006. They also took fan input into consideration on their website during the development phase. You start on a island with a hotel. There are five girls outside who you are able to date and ultimately you are able to have sex with them.

SchoolMate (すくぅ～るメイト in Japanese) is a Japanese sex simulation game developed by Illusion. Unlike previous Illusions games SchoolMate uses a Real-Time 3D Anime Shader. In addition Illusions added a storyline and anime style expressions to the characters.

Oppai Slider 2(おっぱいスライダー２,Oppai Slider 2?) is a Japanese3D sex simulator developed by Illusion Soft. It features three girls of different temperaments and willingness who the player tries to make aroused and ready for sex through the use of various objects and manipulation of erogenous zones. The name, containing the vulgar Japanese term for breasts, is a reference to the game's numerous options for customizing the size and appearance of female characters' breasts, nipples, and various other options like clothing transparency level and hair color through the use of the slider mechanic that makes extensive use of the mouse's scroll wheel. Much of the interaction in the game relies on the scroll wheel as well.